Because of the way they specifically operate, hydraulic truck cranes are different from other crane models. As opposed to utilizing a winch in order to wind up cables to provide the lifting force, hydraulic cranes use oil instead. Since oil is a type of fluid which retains its volume, it is incompressible. Therefore, this means it is one of the most ideal kinds of fluids for pushing pistons towards the direction the force is going to be exerted.
The pressure created by the hydraulic pump moves the piston. This particular action is maneuvered by the operator from the controls in his cab. Normally, hydraulic truck cranes use a 2 gear pump.
The truck mounted crane can move from one location to another with little need for dismantling. The truck crane has one engine that controls both the truck and the crane.
Other Parts
Boom Telescope: The boom telescope allows the boom to retract or extend thanks to hydraulics.
Jib: Jibs are latticed structure booms..
Boom Swing: The boom swing is a big ball or roller which is connected to the carrier. It is able to swing 360 degrees in both directions. Hydraulic mechanisms control the swing and provide swings at various speeds in order to revolve the turntable gearbox.
Outrigger: The outrigger is a unit that helps the crane maintain its balance by using hydraulics to lift the truck.
Load Movement Indicator: In order to warn the operator that maximum weight is approaching, the load movement indicator's lights flash.
Pump: The pump's purpose is to steer the outrigger.
Steel Cables: Steel reinforced cables run through the jib and the boom. They can generate up to 6350 kg or 14,000 lbs.
Boom Elevation: The crane's boom ascends utilizing double hydraulic cylinders that allow for raising and lowering materials.
Rotex Gear: The rotex gear is located under the cab and operated by hydraulics. It allows the boom to swivel on this gear.